<template>
    <div>
        <div class="main-div">
         <router-view/>
        </div>
       
        <van-tabbar v-model="active" @change="changeTabbar(active)">
            <van-tabbar-item icon="shop">首页</van-tabbar-item>
            <van-tabbar-item icon="records">列表页</van-tabbar-item>
            <van-tabbar-item icon="cart">购物车页</van-tabbar-item>
            <van-tabbar-item icon="contact" info="20">会员中心</van-tabbar-item>
        </van-tabbar>
    </div>
</template>
 
<script>
    export default {
        data() {
            return {
                active: 0,
                nowPath:'',  //当前路径
            }
        },
         created(){
           this.changeTabBarActive()
       },
       updated(){
           this.changeTabBarActive()
       },
        methods: {
             changeTabBarActive(){
               this.nowPath = this.$route.path
               if(this.nowPath=='/Cart'){
                   this.active=2
               }
           },
            changeTabbar(active) {
                console.log(active)
                switch(active){
                    case 0:
                        this.$router.push({name:'ShoppingMall'})
                        break;
                    case 1:
                        this.$router.push({name:'CategoryList'})
                        break;
                    case 2:
                        this.$router.push({name:'Cart'})
                        break;
                    case 3:
                        this.$router.push({name:'Member'})
                        break;
                    case 4:
                        break;
                }
            }
        },
    }
</script>
 
<style scoped>
  
</style>